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Regulators, Mounts Up!
Regulators, Mounts Up!
Transition

Transition Regulator SX Carbon Deore eMountain Bike in Stormshadow Grey

£6,999.00
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns - please contact us if you need to return any item.

Refund Policy

Last updated: 10 August 2026

This Refund Policy explains when customers of Drover Cycles may cancel an order, return goods or receive a refund.

Drover Cycles is operated by Drover Cycles (Hay on Wye) Ltd, registered in England and Wales under company number 16125118.

Nothing in this policy affects your statutory rights.

Online purchases – changing your mind

If you are a consumer purchasing goods online or by another distance-selling method, you will normally have a legal right to cancel your order within 14 days after the day on which you receive the goods, subject to certain exceptions.

You must tell us that you wish to cancel within that 14-day period.

You then normally have a further 14 days to return the goods to us.

You are responsible for the cost of returning unwanted goods unless we agree otherwise or the goods are faulty, damaged or incorrectly supplied.

If you cancel the whole order under your statutory cancellation right, we will refund the standard delivery charge you paid to receive the goods. If you selected a more expensive delivery method, we are not required to refund the additional cost above our standard delivery option.

We may reduce a refund where goods have been handled beyond what would reasonably be necessary to establish their nature, characteristics and functioning.

Some products are excluded from statutory cancellation rights, including certain personalised or made-to-order goods, sealed goods which are not suitable for return for health or hygiene reasons once unsealed, and other goods excluded by law.

Our 30-day returns policy

In addition to your statutory rights, we offer a 30-day returns period for most unused goods.

If you change your mind, you may return eligible goods within 30 days of receiving them provided they are:

  • unused;
  • in resalable condition;
  • complete with all supplied parts and accessories; and
  • where reasonably applicable, in their original packaging.

This additional 30-day policy does not reduce any rights you have under consumer law.

Unless the goods are faulty, damaged or incorrectly supplied, you are responsible for the cost of returning them.

Faulty, damaged or incorrectly supplied goods

If goods are faulty, not as described, not fit for purpose or otherwise fail to meet your statutory rights, please contact us as soon as possible.

Your rights are governed by the Consumer Rights Act 2015 and other applicable consumer legislation.

Depending on the circumstances and the time since purchase, you may be entitled to reject the goods for a refund or to require a repair or replacement.

Where we are responsible for supplying faulty or incorrect goods, we will also meet reasonable return costs where required.

Please contact us before returning a large item such as a bicycle so that we can arrange the most appropriate way of dealing with it.

Refunds

Once we have received and inspected returned goods, we will process any refund due to you.

Where you exercise a statutory cancellation right, refunds will be made within the timescales required by law. We may be entitled to wait until we receive the returned goods or evidence that they have been sent back before issuing the refund.

Refunds will normally be made using the original payment method.

Depending on your bank or payment provider, it may take additional time for the refunded amount to appear in your account after we have processed it.

Exchanges

Where stock permits, we are happy to arrange an exchange instead of a refund for eligible returned goods.

Please contact us if you would like to exchange an item.

Bikes and other large items

Please contact us before returning a bicycle or other large item.

Do not arrange an expensive courier return without first speaking to us where you believe an item is faulty or incorrectly supplied, as we may be able to arrange collection or another suitable solution.

Gift cards and vouchers

Gift cards and vouchers are not normally refundable for change of mind except where required by law.

Your statutory rights are unaffected.

Bike hire cancellations and refunds

Bike hire bookings are subject to our separate Bike Hire Terms & Conditions.

Our standard cancellation terms are:

  • where a booking is cancelled with more than 72 hours' notice, the 25% booking deposit is non-refundable but any balance paid will be refunded;
  • where cancellation is made with less than 72 hours' notice, or the customer does not attend for the hire, the full hire charge is non-refundable;
  • a booking may be transferred to another available date in the same calendar year without charge where at least 24 hours' notice is given; and
  • where Drover Cycles determines that weather or other conditions make it unsafe for the hire to proceed, a full refund will be offered.

Please see our Bike Hire Terms & Conditions for full details.

Workshop and other services

Where you ask us to carry out workshop or other services, your cancellation rights may depend upon whether work has begun and whether you expressly asked us to start work during any applicable cancellation period.

Once a service has been fully performed, there may no longer be a right to cancel simply because you have changed your mind.

This does not affect your statutory rights if a service has not been carried out with reasonable care and skill.

If you have a concern about work carried out by our workshop, please contact us so that we can investigate and, where appropriate, put the matter right.

How to request a return or refund

Please contact:

Drover Cycles (Hay on Wye) Ltd
Forest Road
Hay-on-Wye
Herefordshire
HR3 5DS

Telephone: 01497 822419
Email:
[email protected]

Please include your order or booking number where possible.

This Refund Policy forms part of our terms and should be read alongside the relevant Retail Terms & Conditions or Bike Hire Terms & Conditions.

Transition Regulator SX Carbon Deore eMountain Bike in Stormshadow Grey

Season:2025

Brand:Transition

Code:yrGyrGERD.BRC.XS.GER.52.B

The all-mountain steed is here to deliver fun on every trail.

The Regulator SX is Transition's all-mountain eMTB designed to provide a nimble and responsive ride. No trail is too tame or too gnarly for the dedicated mixed-wheel platform with 150 mm rear and 160 mm front travel and geometry that promotes agility and playfulness. The Regulator SX will be the choice for riders looking for a chassis that excels in a variety of terrain with the added assistance of a Bosch SX drive unit delivering 55 Nm of torque from a 400 Wh battery. Coupled with Transition's SBG geometry, you have an eMTB experience close to that of non-assisted bikes. This combination provides the best range-to-weight ratio for those who value lighter ride characteristics, giving you the best of both worlds with one of the most reliable and intuitive motor systems available on the market. For those looking for extra range, the Bosch range extender will take you up to 650 Wh for all day adventures.

Features:

  • 150/160 mm; Mixed Wheels
    The dedicated mixed-wheel platform with 150mm rear and 160mm front travel make the Regulator CX nimble and responsive while delivering powerful assistance for the steepest of climbs. With a 64.5 degree headtube angle and short, 27.5" wheel specific chainstays, Transition was able to make the Regulator one of the most manoeuvrable eMTBs we've ever ridden. This keeps the ride fun and engaging on everything from smooth flow trails to steep tech. A geo adjust chip in the lower shock mount allows riders to fine tune geo to their preferences.
  • High Power to Weight
    The Bosch CX system delivers the highest power-to-weight ratio possible. Perfect for riders who want lighter ride characteristics from their eMTB that excels in a wide variety of terrain. Complete builds come in at just over 47 lbs while still delivering 85 Nm of torque for powerful assistance.
  • Bosch Flow App
    For those looking to dig into the settings, the Bosch Flow app gives you full control and customization. Once paired with your Regulator, you can adjust the power level support and peak power from the convenience of your phone without any wires or a laptop.
  • Bosch Performance Line SX
    Powered by the Bosch Performance Line SX system, the Regulator gets the legendary reliability of Bosch in a lightweight package giving you 55 Nm of torque and 600 W peak power. While powerful, the system also provides an incredibly natural feel that delivers power without breaking traction, keeping your momentum and helping you clear technical trails.
  • Bosch 400 Wh Battery
    Enclosed low in the downtube is Bosch's 400 Wh battery. Perfect for local laps where you want the most manoeuvrable eMTB in the market.
  • Bosch PowerMore Range Extender
    Head into the backcountry with the additional 250wh range extender. Custom cable management keeps the connection clean and secure.
  • Display
    Easily control the power modes and view battery life via the wireless Mini Remote and slim System Controller top tube display. This minimal display keeps you focused on the trail ahead, while providing all the necessary info you need to keep riding. Giving you everything you need, and nothing you don't.
  • Clean Cable Routing
    Cable routing ports are compatible with 0, 1 or 2 cables and allow brakes to be run on either side.
  • Charge Port
    Transition's custom charge port houses two magnets to ensure it stays closed even on the rowdiest of descents.
    The door easily stays open for charging sessions or installing the range extender.
  • Integrated Protection
    Large hollow lugs on the chainstay protector keep chain-slap to a minimum while protecting the frame.
    A pre-installed mud-guard keeps dirt and grime out of the main pivot area.
  • Integrated Chain Guide
    Designed in-house, Transition's pre-installed chain-guide ensures you never miss a pedal stroke.
Technical Information
  • Frame
    Regulator SX Carbon 150 mm
  • Wheel size
    Mixed
  • Drive unit
    Bosch Performance Line SX (BDU31)
  • Battery
    Bosch CompactTube (400 Wh)
  • Display
    Bosch System Controller
  • Assist switch
    Bosch Wireless Mini Remote
  • Rear shock
    RockShox SuperDeluxe Select (205 × 60 mm)
  • Fork
    RockShox Lyrik Base
  • Headset
    FSA No.57 E
  • Stem
    RaceFace Aefect R (40 mm)
  • Handlebar
    RaceFace Chester 35 SM (780 × 20) MD/LG/XL (780 × 35)
  • Grips
    ODI Elite Flow Lock-On
  • Saddle
    SDG Bel Air 3
  • Seatpost
    SDG Tellis SM (150 mm) MD (170 mm) LG (200 mm) XL (230 mm)
  • Brakes
    Shimano Deore M6120 4 Piston
  • Rotors
    Shimano RT66 (203 mm)
  • Shifter
    Shimano Deore M6100 iSpec EV
  • Derailleur
    Shimano Deore M6100 SGS 12 sp
  • Cassette
    Shimano Deore M6100 (10-51T)
  • Chain
    Shimano Deore M6100
  • Crank
    RaceFace Aeffect R E-MTB (160 mm)
  • Chainring
    E*Thirteen Helix Race Direct Mount (32T)
  • Chainguide
    Transition Integrated Top Guide
  • Rims
    WTB ST i30
  • Spokes
    Pillar Double Butted
  • Hubs
    Novatech D791 SB/D902 SB
  • Tyre/Front
    Maxxis Assegai 3 C EXO/TR (2.5)
  • Tyre/Rear
    Maxxis Minion DHRII 3 C EXO/TR (2.4)
  • Included
    Bosch Charger Tubeless Valves & Sealant
  • Color options
    Stormshadow Grey Madrone Gold
Sizing Information
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